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LibWeb: Reimplement Element attribute related methods with NamedNodeMap

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Timothy Flynn 2021-10-16 16:16:57 -04:00 • committed by Linus Groh
parent 2a3ac02ef1
commit c62b70d88f
2 changed files with 44 additions and 36 deletions
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60
Userland/Libraries/LibWeb/DOM/Element.cpp
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@ -38,6 +38,7 @@ namespace Web::DOM {
Element::Element(Document& document, QualifiedName qualified_name)
: ParentNode(document, NodeType::ELEMENT_NODE)
, m_qualified_name(move(qualified_name))
, m_attributes(NamedNodeMap::create(*this))
{
make_html_uppercased_qualified_name();
}
@ -46,53 +47,60 @@ Element::~Element()
{
}
Attribute* Element::find_attribute(const FlyString& name)
// https://dom.spec.whatwg.org/#dom-element-getattribute
String Element::get_attribute(const FlyString& name) const
{
for (auto& attribute : m_attributes) {
if (attribute->name() == name)
return attribute;
}
return nullptr;
}
const Attribute* Element::find_attribute(const FlyString& name) const
{
for (auto& attribute : m_attributes) {
if (attribute->name() == name)
return attribute;
}
return nullptr;
}
String Element::attribute(const FlyString& name) const
{
if (auto* attribute = find_attribute(name))
return attribute->value();
return {};
// 1. Let attr be the result of getting an attribute given qualifiedName and this.
auto const* attribute = m_attributes->get_attribute(name);
// 2. If attr is null, return null.
if (!attribute)
return {};
// 3. Return attr’s value.
return attribute->value();
}
// https://dom.spec.whatwg.org/#dom-element-setattribute
ExceptionOr<void> Element::set_attribute(const FlyString& name, const String& value)
{
// 1. If qualifiedName does not match the Name production in XML, then throw an "InvalidCharacterError" DOMException.
// FIXME: Proper name validation
if (name.is_empty())
return InvalidCharacterError::create("Attribute name must not be empty");
CSS::StyleInvalidator style_invalidator(document());
if (auto* attribute = find_attribute(name))
// 2. If this is in the HTML namespace and its node document is an HTML document, then set qualifiedName to qualifiedName in ASCII lowercase.
// 3. Let attribute be the first attribute in this’s attribute list whose qualified name is qualifiedName, and null otherwise.
auto* attribute = m_attributes->get_attribute(name);
// 4. If attribute is null, create an attribute whose local name is qualifiedName, value is value, and node document is this’s node document, then append this attribute to this, and then return.
if (!attribute) {
auto new_attribute = Attribute::create(document(), name, value);
m_attributes->append_attribute(new_attribute);
}
// 5. Change attribute to value.
else {
attribute->set_value(value);
else
m_attributes.append(Attribute::create(document(), name, value, this));
}
parse_attribute(name, value);
return {};
}
// https://dom.spec.whatwg.org/#dom-element-removeattribute
void Element::remove_attribute(const FlyString& name)
{
CSS::StyleInvalidator style_invalidator(document());
m_attributes->remove_attribute(name);
}
m_attributes.remove_first_matching([&](auto& attribute) { return attribute->name() == name; });
// https://dom.spec.whatwg.org/#dom-element-hasattribute
bool Element::has_attribute(const FlyString& name) const
{
return m_attributes->get_attribute(name) != nullptr;
}
bool Element::has_class(const FlyString& class_name, CaseSensitivity case_sensitivity) const